I'll just cut to the chase, I can't see my particle effect. I'm trying to add a flamethrower effect, and it just refuses to show up. I'm using flamethrower.pcf, and I've already tried dragging the playhead out of the scene, dragging it into another scene, restarting SFM, restarting my computer, using different flamethrower effects, and changing cameras.This is becoming a rather annoying little problem, as the poster will be pretty boring without the fire (not to mention it wouldn't make sense), so any help you can give me would be nice.

have you tried "instancing" the particle? I think i have seen people say in videos doing that will make it show up in this case. (right click the particle in AnimSetEditor>show in elementviewer>particle system. Then in element viewer right click it and >Instance Particle system at the bottom.)

otherwise.. you sure it's nothing else obvious such as not having particles being being drawn by the render settings? The particle not actually in the correct spot in the 3d environment? Having the start and stop times for particle correctly set? etc.

this might be due to some recent problems lately. have you tried launching Source Filmmaker from the SDK menu instead of from where you normally launch from? Instead of "Launch Source filmmaker" click the option below it "launch SDK" then start Source Filmmaker from there then load your project and try again.